Has a newer OpenCL Runtime - OpenCL 1.1 AMD-APP-SDK-v2.5 (684.211), supports cl_khr_fp64 (for GPUs that support DPFP) and adds cl_ext_atomic_counters_32 extension.Would be nice to see if you get higher MHash/s . Post here!

I look to be about 0.8 lower than average but that could be from just about anything and not necessarily the new catalyst or sdk. One thing is for sure, there is zero noticeable improvement for me. But thanks for the link.

We might have to wait for the developers to take advantages of the changes in the SDK to notice real improvement

one nice thing, is you dont have to dongle your extra cards anymore... wonder if they did that due to mining.